Polite phrases for conversational Spanish

Francisco and Mari introduce a video at the Palace of Fine Arts, where they explore the use of polite phrases in everyday situations. They interview Ricardo, who shares common phrases like 'please' and 'thank you' and discusses when to use them, such as in public transport or restaurants. The video concludes with a lesson on polite phrases useful for visitors to Mexico City.

What new insight or understanding did you gain from this video?